Home / 8,318.70-11,477.03-5,336.15

Finding the Fourth Proportional to 8,318.70, 11,477.03 and 5,336.15

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Solution

The fourth proportional to 8,318.70, 11,477.03 and 5,336.15 is: 7,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.70 : 11,477.03 = 5,336.15 : x
  2. Step 2: Convert to fraction form
    8,318.70/11,477.03 = 5,336.15/x
  3. Step 3: Cross multiply
    8,318.70x = 11,477.03 × 5,336.15
  4. Step 4: Simplify right side
    8,318.70x = 61,243,069.57
  5. Step 5: Solve for x
    x = 61,243,069.57/8,318.70
  6. Step 6: Final answer
    x = 7,362.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.